Have to don't have to exercises

Have to don't have to exercises. Choose the right forms have to, don't have to, can or can't to complete the following sentences in English.
I wait for other people to use the bathroom. it is not necessary
I leave home after eight o’clock if I want to. I am able to
I catch the bus. it is necessary
I study in the evening. I am not able to
I make my own breakfast. it is necessary
I send emails. I am able to
I go to the supermarket. it is necessary
I cook a meal for my family. it is not necessary
I work in the evening. it is necessary
I stay out after eleven in the evening. it is not necessary